Direct liquid cooling: density and energy efficiency for the AI era — up to 40% energy saved.
Modern GPUs heat beyond what air can handle: Neptune is Lenovo's direct water cooling — the water (even warm, up to 45°C) passes directly over CPUs and GPUs, removes the heat at the source and cuts up to 40% of the cooling's energy consumption. Extreme density becomes sustainable, even in the existing rooms.
Plumbing, flow rates and flooring: liquid cooling is designed with the plant, not afterwards.
PUE and bill simulated on YOUR case: the liquid pays for itself — we show when.
50-100 kW racks: the AI concentrated where air would stop at 15.
Water quality, maintenance and monitoring: the plumbing enters the runbooks.
Neptune is Lenovo's direct water cooling (sixth generation): the plates bring the warm water (up to 45°C inlet: no chillers, a dry cooler suffices) onto CPUs, GPUs, RAM and VRMs capturing up to 98% of the heat, the SC750/SC777 racks cool the densest HPC/AI nodes (the TDPs beyond 700W per socket can no longer be air-cooled), the PUE drops toward 1.1 and the recovered heat warms the offices in the virtuous projects.
The dense GPUs without thermal limits.
More power in the same room, the same electrical plant.
The kWh (and the decibels) cut at the source.